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Machining FEM model of unidirectional carbon fiber reinforced laminate

机译：单向碳纤维增强层压板加工FEM模型

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摘要

A two-dimensional macro-mechanical finite element (FE) model is developed to study the orthogonal cutting process of CFRP unidirectional laminate by the finite element software ABAQUS. The CFRP laminate is defined as an equivalent orthotropic, homogeneous single-phase material. On the basis of composite unidirectional laminate plane stress-strain and strength theory, the author adopts Hashin progressive damage criteria in the FE model. Based on the results of finite element simulation, the changes of cutting force in the chip formation process of CFRP laminate are analyzed, the Hashin damage in the cutting process and the influences of fiber orientation on cutting force, chip formation mechanism and sub-surface damage are explored as well. The comparison between this paper and previous related research shows that the results have a reasonable agreement with the previous achievements.
机译：开发了一种二维宏观机械有限元（FE）模型来研究CFRP单向层压板的正交切削过程ABAQUS。 CFRP层压板定义为等效的正交，均相单相材料。基于复合单向层压平面应力 - 应变和强度理论的基础，作者采用了FE模型中的Hashin逐行损伤标准。基于有限元模拟的结果，分析了CFRP层压板芯片形成过程中切割力的变化，切割过程中的散列损伤以及纤维取向对切割力，芯片形成机制和亚表面损伤的影响也是探索的。本文与以前的相关研究之间的比较表明，结果与以往的成果有合理的协议。

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